What is another way to say son las blusas de rosita?

Here are some ways to say "son las blusas de Rosita" (those are Rosita's blouses) in Spanish, with varying levels of formality and emphasis:

Formal:

* Estas son las blusas de Rosita. (These are Rosita's blouses.)

* Las blusas pertenecen a Rosita. (The blouses belong to Rosita.)

Informal:

* Esas son las blusas de Rosita. (Those are Rosita's blouses.)

* Las blusas son de Rosita. (The blouses are Rosita's.)

* Son de Rosita. (They're Rosita's.)

Emphasizing Ownership:

* Estas blusas son solo de Rosita. (These blouses are only Rosita's.)

* Rosita es la dueña de estas blusas. (Rosita is the owner of these blouses.)

The best option will depend on the context of the conversation and your relationship with the person you are speaking to.